Open Today! Sales: 9am-6pmService: 8am-5pm

Buick, GMC Buick, GMC

Commercial Vehicles

We get it. When it comes to your fleet, you can’t afford mistakes. You need the right vehicles, customized to your specific business needs. You need a dealer you can count on and you need every dollar to count.

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GMC Savannah with commercial storage system
Dealership Exterior with Employees

Welcome to Mills Motors Buick GMC

Your vehicle is one of the most important things you own. It gets you to work, gets your kids to school, helps you run errands around town, and lets you take to the open road. For something so essential to everything you do, you want to rely on the very best dealership in the area for sales, financing, service, and parts. That dealership is Mills Motors Buick GMC.

The first thing people notice when they visit us in person is the size of our inventory. We carry the full lineup of new vehicles from Buick and GMC. There are many options for every driver and every budget. We also have a huge inventory of pre-owned vehicles from other major automakers, which makes it easy to comparison shop. When the right vehicle jumps out at you, our expert financing department is here to get you approved for the loan you need quickly at a competitive rate.

Once you’re on the road, trust our professional service department to handle all your long-term maintenance and repair needs. You car is in good hands with our team, and we will do everything possible to provide superior work faster and at a lower price. You can also take advantage of our parts department to find official parts and accessories for purchase for all Buick and GMC vehicles.

Car shoppers from far and wide choose to work with us a because of our total commitment to customer service. We will do whatever it takes to ensure your experience accommodates all your needs, saves you money, respects your time, and leaves you fully satisfied. Visit us in person Monday through Saturday at 240 Bond Street East in Oshawa, and contact us if we can answer any of your questions.


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Our Reviews

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Google Apr 27, 2023

Great, rapid service. Prompt repair and exactly the price I expected.

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Google Mar 23, 2023

Dealing with Everton Mitchell was a pleasant experience. I originally traveled to Mills Motors from Quinte West as they had a more comprehensive line of trucks than our local dealers have. The biggest and only reason I am not giving the dealership a 5 star rating is their shwag display... The item I was most interested in, which was displayed, is a discontinued item and not available (if I want an identical one with a Chevy logo, it's available). As well their washroom, when my wife went to use it, was a mess.

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Google Mar 6, 2023

A big shout out to Mills with our truck! Twice now they have gone above and beyound with their customer service. Fast, efficient service. Thank you to the service advisors and the mechanics. Nice to see this level of service these days.

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Google Feb 18, 2023

Great people all around at Mills Motors. The help they provided to purchase my old truck for top dollar, to finding me my new truck with all the options I had hoped for. Brian, Don and the entire staff I dealt with at Mills were top notch! When my new truck arrived there was a small cosmetic issue that had obviously taken place during shipping. They ordered a new part and had it replaced within the first few days of me picking it up. If you’re looking for a new GMC or Buick, I would highly recommend Mills Motors.

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Google Jan 26, 2023

Mills has ALWAYS ensured that my service needs are met. I’ve got complete confidence in their crew to work on my Nissan despite not being a Nissan dealer!

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DealerRater Jan 20, 2023

Incredible service! I took my car in there and the process was smooth and efficient. Jeremy was great to deal with. Thanks again.

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We are conveniently located at 240 Bond Street, Oshawa, ON L1G 1B5 (At the corner of Ritson and Bond, across from Costco)

Buy From Home Value Your Trade!
Buy From Home Value Your Trade!

Main: (905) 436 1500

Service: (905) 432 7333

Parts: (905) 723 8105

Collision Centre:

Mills Motors Buick GMC 43.9013761, -78.8554195.